Cedar Rapids Levee Setback Project - 2012

King County has applied for and received all permits related to summer 2012 construction, which will focus on right bank repairs. Right bank construction was completed in September 2012 to provide a stable setback levee and remove remnant rocks from the channel. Planting work will continue this fall and winter.

Project overview

The Cedar Rapids Levee Setback Repair Project will repair the existing Cedar Rapids setback levees along both the left and right banks of the Cedar River.

The project is located within the Cedar Rapids Natural Area on the Cedar River between river mile 7.2 and 7.4. The levee setback modification along the left bank will occur between river mile 7.2 and 7.4, and the revetment setback project on the right bank will occur at river mile 7.25. These river locations roughly correspond to the 17600 block of State Route 169 (Maple Valley Highway) on the left bank, and Southeast Jones Road on the right bank.

A buried rock toe will be installed along the riverward face of the left (south) bank. On the right (north) bank, a short segment of the upstream end of the Brassfield Revetment will be set back and will tie into the Cedar Rapids Setback Levee. Large angular rock placed in the channel during a 2011 emergency project will be incorporated into the new facility. Native trees and shrubs will be planted to restore the areas impacted by this project.

Project goals

• Flood damage reduction:
  • home buyouts to remove from harm's way
  • increase flood capacity of the reach
  • continue flood protection of adjacent properties
• Salmon recovery through habitat improvements
• Design that addresses recreational uses
• 2012 goals are to repair existing levee to provide adequate erosion protection

Project timeline

Project documents

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• Cedar Rapids Levee Setback Repair 90% Design Plans (3MB, PDF)

• Cedar Rapids Levee Setback Repair project Environmental Checklist (1.2MB, PDF)

• Cedar Rapids Levee Setback Repair project Determination of Non-Significance (96 KB, PDF)

• Notice of Action  (47KB, PDF)